1904.] 



SKULL OF THE GIRAFFE. 



155 



and the anterior margins of the orbits are seen in the distance. 

 Although in some Giraifes the median horn is fused with the 

 frontal bones, in the skull under considei'ation it is separable, 

 and its under surface is very concave considering the convexity 

 of the upper surface of the fi'ontal bones upon which it is set. 



Text-fio-. 9. 



basLyph 



Outline sketch of the view, looking- backwards, of the skull cut in the direction of 

 the line 4 in text-fia;. 4. One-third (linear) of the natural size. 



The frontal vacuity on each side is large, and is divided into a more 

 central part and a more lateral or supra-orbital part by a fenes- 

 trated partition. Both cavities communicate by means of fenestra? 

 in the bony partitions with the hinder part of the nasal cavity, 



